|Publication number||US7972349 B2|
|Application number||US 10/520,507|
|Publication date||Jul 5, 2011|
|Filing date||Aug 2, 2004|
|Priority date||Aug 6, 2003|
|Also published as||DE602004031846D1, EP1651110A1, EP1651110B1, US20060129172, WO2005013825A1|
|Publication number||10520507, 520507, PCT/2004/3314, PCT/GB/2004/003314, PCT/GB/2004/03314, PCT/GB/4/003314, PCT/GB/4/03314, PCT/GB2004/003314, PCT/GB2004/03314, PCT/GB2004003314, PCT/GB200403314, PCT/GB4/003314, PCT/GB4/03314, PCT/GB4003314, PCT/GB403314, US 7972349 B2, US 7972349B2, US-B2-7972349, US7972349 B2, US7972349B2|
|Inventors||David Danvers Crossman, Jeremy Marshall|
|Original Assignee||Owen Mumford Limited|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (16), Non-Patent Citations (1), Classifications (19), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
A blood sampling device includes a needle-carrying lancet, a housing and a cap.
2. Description of the Related Art
A conventional form of blood sampling device comprises a lancet which is sprung-loaded within a housing so that, upon release of a trigger, the lancet is driven forward to cause a needle tip to project momentarily from an end of the housing to prick the skin of a patient in order to enable a blood sample to be taken. For transportation before use, the needle is covered by a removable cap and the lancet is held within the housing in the sprung loaded condition. There is, however, always the possibility of inadvertent release of the trigger. It is an object of this invention to provide a blood sampling device of this nature which provides greater security against release of the lancet from the housing during transportation before use.
Accordingly, there is provided a blood sampling device comprising a needle-carrying lancet located within a housing and having a cap positioned over the needle, the cap extending to project through an opening at one end of the housing and having one or more locating members fitting into one or more cooperating features of the outer walls of the housing, the cap being twistable to release the locating members from the cooperating features such that the cap can be detached from the housing and from the needle.
Ideally the or each locating member is a flange or rib and the or each cooperating feature is a groove, or vice versa. There could be two flanges fitting into grooves in two opposed sides of the outer walls of the housing.
The cap holds the lancet securely within the housing during transportation, even if pressure is inadvertently applied to the trigger which would otherwise release a drive mechanism to cause a spring to drive the lancet out of the housing. Before use, the user will rotate the cap relative to the rest of the lancet to enable the cap to be detached and removed from the tip of the needle. This rotation will also release the locating members from the cooperating features, thus enabling the cap to be detached from the device whilst leaving the lancet in its primed state.
In the invention, the trigger releasable latch and said lancet have respective opposed latch surfaces cooperable to retain the lancet in the housing until release of the latch, and the cap is adapted to hold the lancet in a position in which the lancet latch surface is spaced rearwardly of the latch surface of the trigger-releasable latch until said cap is detached from the housing and from the lancet.
In the preferred arrangement, the lancet is sprung loaded to urge the lancet in the direction towards the opening in the housing.
Ideally the device will include a trigger-releasable latch to hold the lancet within the housing such that an exposed needle cannot project through said opening until the latch is released by the trigger.
The invention may be performed in various ways and a preferred example thereof will now be described, with reference to the accompanying diagrammatic drawings, in which:
The device shown in
The location of the flanges 7 within the notches 8 holds the lancet 2 within the body 1 so as to compress a spring (not shown) positioned between a head 9 and a slotted portion 10 of the housing 1. When the device is to be used, the head 6 of the cap 5 is rotated through 90° so as to release the flanges 7 from the notches 8 in the two sides of the housing 1. This allows the lancet body 2 to move forwards (under the bias of the spring) until a ledge 11 on the lancet locates against a flange 12 on the trigger member 13 (
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|JP2000109104A||Title not available|
|JPH0716218A||Title not available|
|JPH11349015A||Title not available|
|JPH11349016A||Title not available|
|WO1996016599A1||Nov 27, 1995||Jun 6, 1996||Apls Co., Ltd.||Lancet assembly|
|WO2002043591A2||Nov 26, 2001||Jun 6, 2002||Owen Mumford Limited||Improvements relating to skin prickers|
|WO2003005907A1 *||Jul 10, 2002||Jan 23, 2003||Arkray, Inc.||Lancet and piercing device|
|1||JP Office Action dated Apr. 22, 2010 from corresponding JP Application No. 2006-522396.|
|U.S. Classification||606/182, 606/181, 600/583|
|International Classification||A61B17/14, A61B5/15, A61B17/32|
|Cooperative Classification||A61B5/150519, A61B5/150412, A61B5/150885, A61B5/150717, A61B5/150549, A61B5/150618, A61B5/1411, A61B5/15142, A61B5/15117, A61B5/15113, A61B5/150022|
|European Classification||A61B5/14B2, A61B5/151D|
|Oct 4, 2005||AS||Assignment|
Owner name: OWEN MUMFORD LIMITED, UNITED KINGDOM
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CROSSMAN, DAVID DANVERS;MARSHALL, JEREMY;REEL/FRAME:016850/0136
Effective date: 20050315
|Dec 26, 2014||FPAY||Fee payment|
Year of fee payment: 4